<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>show</title>
</head>
<body>
    <h1>我的 Web 页面</h1>
    <p id="demo">一个段落</p>
    <button type="button" onclick="myFunction()">尝试一下</button>

    <input style="display:none;" name="input"  value='I am Input'/>
</body>
</html>
